Hi,
Can someone provide me some information about encryption and decryption of critical
data such as credit number card in order to stock them on a mysql database in a secure
way.

What I want to do is making a web interface secured via SSL in order to be able to
consult some people information. As I don't want the critical information to be
plaintext on the db, I'm searching for a way to get it encrypted and then decrypted
when I'm consulting via the interface.
I've read the php.net documentation and many articles about data
encryption/decryption but both of them stand theorical about the various algorithms.
Do you know the more secures of them and the way to use them ?
Do you know people working in the same way or do they prefer another kind of more
secure solution ?
Thank you for your advice,
R.